A 17-year-old girl, a 17-year-old boy and a 16-year-old boy died in the crush at the Greenvale Hotel in Cookstown

The incident happened at around 9.30pm as teenagers were waiting for a St Patrick's Day disco to begin

Police say revellers fell during a crush at the front door of the hotel

Despite initial reports of a fight, the Ambulance Service said none of the victims' injuries were consistent with an altercation

The hotel's CCTV footage is being examined

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St Patrick's College was open from 1pm today and tomorrow for pupils wishing to gather and receive support.

"Our school chaplain, counselling services and the EA Critical Incident Team will be available in the coming days as necessary for our students and staff," Ms McHugh said.

"At this time, we think of those families and young people impacted by this terrible tragedy and will do what is needed to support them."

Outside school, she was a leading member of the team Euphoria Allstar Cheerleading NI. In an online tribute, the club said it was "absolutely devastated" to lose one of its senior athletes.

"You were the most down to earth, beautiful soul and our Coral team will never be the same without you. You were an incredible cheerleader and were the backbone of our team," the club said on Facebook.

"I honestly can't put into words how much you will be missed. Thank you Lauren for giving me the pleasure of coaching you all this time.

"We love you Lauren, you're now shining over us all. We will never forget you. The brightest purple star in the sky. Our angel. Fly high our beautiful girl."

Studio 86 in Carrickfergus said it was heartbroken to learn of the death of "such a beautifully talented athlete".

Members have been asked to wear purple to dance classes this week in tribute to Lauren.